The Top 10 Carbon Capture Companies In 2025

The planet is heating up, and we’re the reason why. According to NASA Climate, human activities have increased atmospheric CO₂ by 50% in less than 200 years—a level not seen in millions of years. The effects are clear: rising global temperatures, extreme weather events, and ecosystem disruptions. While reducing emissions is critical, the damage already done is irreversible. That’s where carbon capture companies come in.

• What Is Carbon Capture?

Carbon capture is the process of trapping CO₂ before it enters the atmosphere or removing it directly from the air. It is then either stored underground or repurposed into useful products.

• How Does Carbon Capture Work?

The basic steps of carbon capture include:

1. Capture – CO₂ is captured from industrial emissions or directly from the air.
2. Transport – The captured carbon is moved through pipelines, ships, or trucks.
3. Storage or Utilization – The CO₂ is either stored underground in rock formations or converted into products like fuels, chemicals, or building materials.

Now that you have an understanding of what carbon capture technology companies do, let’s take a look at some top Carbon Capture and Storage Companies.

List Of The Top 10 Carbon Capture Companies

1. Aker Carbon Capture

• Headquarters: Lysaker, Akershus, Norway
• Founded in: 2020
• Founder(s): Valborg Lundegaard

Aker Solutions has been at the forefront of carbon capture, utilization, and storage (CCUS) for decades. What’s interesting is they don’t stick to one specific tech. They’re kind of open to anything that works, partnering up with all sorts of people to figure out the best ways to grab CO₂, move it, and stash it away. They’re basically playing the field, trying to find the most effective solutions, instead of being locked into one approach. (technology-agnostic).

Aker Carbon Capture’s Technology and Process:

1. Captures emissions from industrial sources, such as factory chimneys.
2. Separates CO₂ using amine solvents.
3. Liquefies CO₂ for easier transportation.
4. Injects CO₂ deep underground into geological formations for permanent storage.

Aker Solutions has made significant strides in carbon capture with groundbreaking projects. It delivered the first subsea CO₂ injection system, initially capable of handling 1.5 million metric tons per year, with plans to expand to 5 million metric tons.

Moreover, the company is also a key player in Norway’s Longship project, the world’s first full-scale CCS initiative, aligning with international climate agreements.

2. Capture6 Corp

• Headquarters: Berkeley, California, USA
• Founded in: 2021
• Founder(s): Dr. Ethan Cohen-Cole, Luke Shors

Capture6 combines direct air capture (DAC) with water recovery, tackling both carbon removal and water security. Their technology extracts CO₂ from the air while producing freshwater for local communities.

Capture6 Technology and Process:

1. Uses saltwater to create a carbon capture solvent.
2. Partners with water treatment facilities to repurpose industrial-scale technologies.
3. Recovers over 50% of freshwater from treatment plant effluent for drinking and industrial use.
4. Captures CO₂ while eliminating waste brine in the process.

Additionally, Capture6 has 4 main projects including:

1. Project Monarch – A large-scale carbon removal and water recovery initiative.
2. Project Octopus – Focuses on integrating DAC with coastal desalination plants.
3. Project Wallaby – Targets industrial CO₂ emissions while enhancing water security.
4. Project Tuatara – Aims to develop sustainable carbon capture in island ecosystems.

3. Carbon Clean

• Headquarters: London, UK
• Founded in: 2009
• Founder(s): Aniruddha Sharma and Prateek Bumb

Founded in India, Carbon Clean develops advanced carbon capture technology. The company moved to London in 2012 after receiving a £3.5 million UK government grant. Since its inception, it has captured over 2.5 million metric tons of CO₂.

Carbon Clean Technologies:

1. CycloneCC – A modular carbon capture system with Rotating Packed Beds (RPBs), offering capacities from 75 to 855 tons per day with a reduced footprint and lower costs.
2. CaptureX – A semi-modular system optimized for Carbon Clean’s proprietary solvents, designed for scalability.
3. Proprietary Solvents – APBS-CDRMax® for industrial carbon capture and APBS-CARBex® for biogas and RNG upgrading, using advanced amine and salt formulations for higher efficiency.

4. Climeworks

• Headquarters: Zurich, Switzerland
• Founded in: 2009
• Founder(s): Dr. Christoph Gebald, Dr. Jan Wurzbacher

Climeworks is a Swiss company specializing in carbon removal solutions. They develop strategies combining nature-based methods with engineered technologies, notably their advanced Direct Air Capture (DAC) systems.

Climeworks’ process involves:

1. Atmospheric Capture: Climeworks’ DAC technology captures CO₂ directly from the air, but they’re picky about the energy they use—only renewable stuff or waste heat.
2. CO₂ Concentration: The CO₂ is then released from the filter, purified, and prepared for storage.
3. Underground Storage: In partnership with Carbfix in Iceland, the CO₂ is injected into basalt rock formations, where it mineralizes and is permanently stored.

Climeworks, they’re not messing around with scaling up, right? That Mammoth plant of theirs? Biggest DAC and storage plant on the planet.

And, get this, they just landed a huge deal with Morgan Stanley, their second-biggest contract ever. It really shows they’re becoming a serious player in the whole climate tech scene.

5. Carbon Engineering

• Headquarters: Squamish, British Columbia, Canada
• Founded in: 2009
• Founder(s): David Keith

Carbon Engineering is a leading company in direct air capture (DAC) technology, dedicated to removing carbon dioxide from the atmosphere. Their goal is to develop scalable and cost-effective solutions to tackle climate change.

Carbon Engineering’s DAC process consists of two main steps:

1. Capture: Large fans pull air into a contactor unit. The air meets a liquid sorbent that captures CO₂, increasing efficiency through a structured PVC surface.
2. Regeneration: The CO₂-rich sorbent then moves to a processing unit, where the carbon dioxide is concentrated and purified. The system is designed as a closed-loop, minimizing waste and reducing costs.

The company continuously improves its technology through its Innovation Centre in Squamish, where they test and refine materials, processes, and system designs.

6. CarbonFree

• Headquarters: Berkeley, California, USA
• Founded in: 2003
• Founder(s): Martin Keighley

CarbonFree captures CO₂ from industrial emissions and converts it into useful chemicals. Operating since 2016, its SkyMine plant in Texas is the world’s first large-scale carbon mineralization facility, capturing up to 50,000 metric tons of CO₂ annually and turning it into baking soda.

CarbonFree Technologies:

1. SkyMine® – Captures CO₂ from cement flue gas and converts it into sodium bicarbonate.
2. SkyCycle™ – A second-generation CCUS solution with low energy costs, creating carbon-negative chemicals.

Both technologies produce sodium bicarbonate, precipitated calcium carbonate (PCC), and hydrochloric acid, offering a scalable, on-site solution for CO₂ reduction.

7. Calix Limited

• Headquarters: Pymble, Australia
• Founded in: 2005 
• Founder(s): Connor Horley and Mark Sceats

Calix is an environmental technology company focused on industrial decarbonization and sustainability. Its patented kiln technology enables the electrification of industries, efficient CO₂ capture, and green processing solutions.

Calix Technology & Process:

1. Uses a unique indirect heating process, where minerals move through externally heated steel tubes.
2. Allows clean, efficient, and precise electric heating, reducing reliance on fossil fuels.
3. Captures unavoidable CO₂ emissions from cement and lime production in a pure form for storage or reuse.
4. Produces nanoporous materials with enhanced chemical and bioactivity for various applications.

With a strong R&D network, Calix is developing solutions to reduce industrial emissions and create a sustainable future.

8. LanzaTech

• Headquarters: Skokie, Illinois, United States
• Founded in: 2005
• Founder(s): Dr. Sean Simpson and Dr. Richard Forster

LanzaTech’s carbon recycling technology transforms industrial emissions into fuels and chemicals, much like a brewery— but instead of yeast fermenting sugar, bacteria convert pollution into useful products.

LanzaTech Technology & Process:

1. Captures waste carbon from steel mills, landfills, and other industrial sites.
2. Uses proprietary microbes to ferment emissions into ethanol and other chemicals.
3. These raw materials can replace fossil-based ingredients in fuels, plastics, and consumer goods.

LanzaTech has six commercial plants worldwide. They’re basically grabbing 500,000 metric tons of CO₂ every year and turning it into 300,000 metric tons of ethanol, turning industrial waste emissions into valuable, sustainable raw materials.

9. Carbfix

• Headquarters: Reykjavík, Iceland
• Founded: 2006
• Founder(s): Dr Ólafur Ragnar Grímsson, Einar Gunnlaugsson, Wallace S. Broecker, Eric H. Oelkers, Sigurður Reynir Gíslason

Carbfix offers a unique carbon storage solution by turning CO₂ into stone within two years. They work with Direct Air Capture (DAC) and Bioenergy with Carbon Capture and Storage (BECCS) projects to provide permanent CO₂ removal.

Carbfix Technology and Process:

1. CO₂ Dissolution – CO₂ is mixed with water.
2. Injection – The carbonated water is injected into basalt rock.
3. Mineralization – A reaction turns CO₂ into stable carbonate minerals.
4. Permanent Storage – The CO₂ remains locked in stone for thousands of years.

So, this Mammoth DAC plant in Iceland, it’s a big deal for carbon capture. They teamed up Climeworks and ON Power, and they’ve basically multiplied their carbon capture capacity by ten. Plus, they’re pulling 36,000 tons of CO₂ out of the air every year. And what’s cool is, they’re using this Carbfix method, which makes storing that CO₂ way faster, safer, and easier to scale up.

10. CarbonCure Technologies

• Headquarters: Halifax, Nova Scotia, Canada
• Founded in: 2012 
• Founder(s): Robert Niven

CarbonCure is revolutionizing the concrete industry with technology that enables concrete producers to inject captured CO₂ into fresh concrete. This transforms concrete into a permanent mineral and reduces embodied carbon.

The CarbonCure Valve Box seamlessly integrates with concrete plants, ensuring precise CO₂ injection. This isn’t just about lowers emissions, though. It actually helps them use less cement, which saves money too. So, it’s like a win-win: better for the planet, better for the bottom line.

CarbonCure is expanding its impact with innovative solutions across various concrete applications:

1. CarbonCure Precast: Saves 20-30 lbs (12-18 kg) of CO₂ per cubic yard/meter, making precast concrete more sustainable.
2. CarbonCure Reclaimed Water: Captures 10-25 lbs (5-11 kg) of CO₂ per cubic yard/meter by recycling wastewater in concrete production.
3. CarbonCure Masonry: Cuts 1 lb (0.5 kg) of CO₂ per 30 standard blocks, reducing the carbon footprint of masonry products.

To date, CarbonCure has helped save 549,414.6 metric tons of CO₂, with over 8 million truckloads of sustainable concrete delivered.

Now that we have reached the end of our list, let’s look at some expert analysis on each of these carbon company.

Key Insights On The Above Carbon Capture Companies

Maria Isabel Rodrigues